Triangular screwdriver handle


FIG. 1 is a top plan view of the triangular screwdriver handle constituting our new design, the shank, the reversing ring and the end cap in phantom and thus not forming part of the claimed invention;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a side elevational view thereof, the other side being identical;

FIG. 4 is a front view thereof; and,

FIG. 5 is a rear view thereof.

Referenced Cited
U.S. Patent Documents
D143931 February 1946 Odlum
D197501 February 1964 Huxtable
D201171 May 1965 Knudsen et al.
D244747 June 21, 1977 Solf
D256547 August 26, 1980 Holland-Letz
D256882 September 16, 1980 Jansson
D261980 November 24, 1981 Fee et al.
D270706 September 27, 1983 Cleminshaw
D307236 April 17, 1990 Cascio et al.
D309246 July 17, 1990 Cascio et al.
D312563 December 4, 1990 Hillinger
D360344 July 18, 1995 Eggert et al.
D375669 November 19, 1996 Shiao
1447832 March 1923 Bailey
3026920 March 1962 York
3463209 August 1969 Podolsky
3586080 June 1971 Slany
4951533 August 28, 1990 Hillinger
Foreign Patent Documents
2828077 January 1980 DEX
Other references
  • Copies of photographs of TOPLUS three-sided tool handle. Copies of photographs of four-sided tool handle with teardrop-shaped design on each side. Copies of photographs of four-sided tool handle with ribs on each side. Proto Tool catalog page, "Screwdrivers" 1969. Techni-Tool catalog page, "AISI 6150 Chrome Van" 1984.
Patent History
Patent number: D398507
Type: Grant
Filed: Mar 11, 1996
Date of Patent: Sep 22, 1998
Assignee: Snap-on Technologies, Inc. (Lincolnshire, IL)
Inventors: Christopher D. Thompson (Milwaukee, WI), Daniel M. Eggert (Kenosha, WI), Timm R. Herman (Columbus, GA)
Primary Examiner: Philip S. Hyder
Law Firm: Emrich & Dithmar
Application Number: 0/51,465
Current U.S. Class: D 8/83; D8/107
International Classification: 0804;